GOST 9179 99 building lime specifications. Packaging, marking, transportation and storage
INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ICC)
INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC,
INTERSTATE
STANDARD
BUILDING LIME Specifications
(EN 459-1:2010, NEQ)
Official edition
mmzhzhya
StM1LfTM1fP[M
GOST 9179-2018
Foreword
The goals, basic principles and basic procedure for work on interstate standardization are established in GOST 1.0-2015 “Interstate standardization system. Basic Provisions” and GOST 1.2-2015 “Interstate Standardization System. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, updating and cancellation
About the standard
1 DEVELOPED by the Federal State Budgetary Educational Institution of Higher Education "National Research Moscow State Civil Engineering University" (NRU MGSU) with the participation Management company ROSIZVEST (MC ROSIZVEST), Limited Liability Company Specialized Industrial Technologies - Manufacturing of Pipeline Parts (LLC Spetspromtekh-IDT), Limited Liability Company Pridonhimstroy Izvest (LLC Pridonhimstroy Izvest). Eldako Limited Liability Company (Eldako LLC), Building Materials Joint Stock Company. Closed joint-stock company "Izvestnyak" Dzhegonassky quarry (CJSC "Izvestnyak" Dzhegonassky quarry).
2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"
3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes of June 27, 2018 N? 53)
4 This standard has been developed taking into account the main regulatory provisions of the European standard EN 459-1:2010 “Building lime. Part 1. Definitions, specifications and conformity criteria" ("Building lime - Pan 1: Definitions, specifications and conformity criteria". NEQ)
5 Order federal agency no technical regulation and metrology dated October 2, 2018 No. 691-st interstate standard GOST 9179-2018 entered into force as a national standard Russian Federation from May 1, 2019
6 INSTEAD OF GOST 9179-77
Information about changes to this standard is published in the annual information index "National Standards", and the text of changes and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly information index "National Standards". Relevant information, notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet (www.gost.ru)
© Standartinform, design. 2018
In the Russian Federation, this standard cannot be fully or partially reproduced. replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology
1 area of use............................................... ...................one
3 Terms and definitions ........................ 1
4 Classification................................................... ...................2
5 Specifications .................................................................. ...............2
6 Rules for acceptance ............................................... .....................4
7 Test methods............................................................... ....................6
8 Packaging, labelling, transport and storage ..........................................................6
9 Manufacturer's warranties .................................................................. ...............6
GOST 9179-2018
INTERSTATE STANDARD
LIME FOR CONSTRUCTION
Specifications
lime for building purposes. Specifications
Introduction date - 2019-05-01
1 area of use
This standard applies to building lime intended for:
For the preparation of dry building mixtures, concrete and mortars:
Manufacture of building products and products (silicate brick, autoclaved cellular concrete, etc.);
Other applications in construction (consolidation of soils and fixing of soil bases *, preparation of asphalt concrete mixtures, etc.).
In agreement with the consumer, it is allowed to use this standard in other industries *.
8 of this standard, normative references to the following interstate standards are used:
GOST 8.579-2002 State system ensuring the uniformity of measurements. Requirements for the quantity of packaged goods in packages of any kind during their production, packaging, sale and import
GOST 2226-2013 Bags made of paper and combined materials. General specifications
GOST 6613-86 Woven wire mesh with square mesh. Specifications
GOST 22688-2018 Building lime. Test Methods
GOST 30108-94 Construction materials and products. Determination of specific effective activity of natural radionuclides
GOST 32522-2013 Woven polypropylene bags. General specifications
Note - When using this standard, it is advisable to check the validity of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or according to the annual information index "National Standards", which was published as of January 1 of the current year, and on issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.
3 Terms and definitions
8 of this standard, the following terms are used with their respective definitions:
3.1 lime
during thermal decomposition (decarbonization) of natural calcium carbonate (limestone, chalk, shell rock) or natural calcium-magnesium carbonate (dolomite, dolomite limestone).
Official edition
GOST 9179-2018
3.2 quicklime
3.3 hydrated lime
3.4 building lime building materials and products.
3.5 air lime: Lime hardened under air-dry conditions by the action of carbon dioxide Air lime does not have hydraulic properties and is divided into two subgroups: calcium lime and dolomite lime.
3.6 hydraulic lime
4 Classification
4.1 Building lime, depending on the hardening conditions, is divided into air, which ensures the hardening of mortars and concretes and maintains their strength in air-dry conditions, and hydraulic, which ensures the hardening of mortars and concretes and maintains their strength both in air and in water.
Note - The use of the synonymous term "slaked lime" is allowed.
4.2 Air quicklime, depending on the content of calcium and magnesium oxides in it, is divided into the following types:
Calcium - air lime, consisting mainly of calcium oxide or hydroxide without impurities of hydraulic or pozzolanic materials:
Magnesian - air lime, consisting mainly of magnesium oxide or hydroxide without impurities of hydraulic or pozzolanic materials:
Dolomitic - lime, consisting mainly of calcium oxide and magnesium oxide or calcium hydroxide and magnesium hydroxide without impurities of hydraulic or pozzolanic materials.
4.3 Air lime is divided into quicklime and hydrated (slaked), obtained by slaking calcium, magnesia and dolomitic lime.
4.4 Hydraulic lime is divided into weakly and strongly hydraulic.
4.5 According to the fractional composition, lime is divided into lump, including crushed, and powdered.
4.6 Powdered lime obtained by grinding or slaking (hydrating) lump lime. subdivided into lime without additives and with additives.
4.7 Quicklime according to the slaking time is divided into quick-extinguishing - no more than 8 minutes. medium extinguishing - no more than 25 min. slow extinguishing ~ more than 25 min.
5 Technical requirements
5.1 Lime should be produced in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner.
5.2 Materials used in the production of lime: carbonate rocks, mineral additives (granulated blast-furnace or electrothermophosphorus slag, active mineral additives, quartz sand), must meet the requirements of current regulatory documents.
5.2.1 Mineral additives are introduced into powdered lime in amounts allowed by the requirements for the content of active CaO + MgO in it (see 5.4).
5.3 Airy quicklime without additives is divided into three grades: 1st. 2nd and 3rd: quick powdered with additives - into two grades: 1 and 2: hydrated (slaked) without additives and with additives - into two grades: 1st and 2nd.
5.4 Air lime should meet the requirements specified in table 1.
Table 1
hydrated |
||||||||
Active CaO + MdO. at least: Without additives - with additives Active MDO. no more CO2. no more: Without additives Adding Hami Kelogowed grains, no more | ||||||||
5.4.1 Moisture content of hydrated lime should not exceed 5%.
5.4.2 The grade of lime is determined by the value of the indicator corresponding to the lowest grade, if for individual indicators it corresponds to different grades.
5.5 Hydraulic lime chemical composition must comply with the requirements specified in table 2.
table 2
5.6 The compressive strength of the samples should be. MPa. at least:
* after 7 days of curing:
not standardized - for weakly hydraulic lime.
2.0 - for highly hydraulic:
* after 28 days of curing:
2.0 - for slightly hydraulic lime.
5.0 - for highly hydraulic.
5.6.1 The type of hydraulic lime is determined by the compressive strength, if, according to individual indicators, it belongs to different types.
5.8 The size of the fraction of powdered air and hydraulic lime should be as follows. so that when sifting a sample of lime, the residue on a sieve with mesh number 02 according to GOST 6613 is no more than 2%. the residue on the sieve with mesh number 009 according to GOST 6613 is not more than 15% of the weight of the sifted sample.
The maximum size of pieces of crushed lime should be no more than 20 mm.
GOST 9179-2018
5.8.1 By agreement with the consumer, it is allowed to supply lump hydraulic lime used for technological purposes.
5.9 Air and hydraulic lime shall pass the test for uniformity of change in volume.
6 Acceptance rules
6.1 Lime must be accepted by the technical control of the enterprise and the manufacturer.
6.2 Lime is accepted and shipped in batches. A batch is considered to be the amount of lime of the same type and grade, manufactured using the same technology and accompanied by one document (quality document). The batch size is set depending on the annual capacity of the enterprise, i.e. no more than:
200 - with an annual capacity of up to 100 thousand tons inclusive:
400 - with an annual capacity of over 100 to 250 thousand tons;
800 - with an annual capacity of over 250 thousand tons.
6.3 The mass of lime supplied is determined by weighing in Vehicle ah on "railway, truck scales and other verified measuring instruments that have been verified in the prescribed manner.
The mass of lime shipped by water transport is determined by the draft of the vessel.
6.4 The manufacturer carries out acceptance and certification of products and assigns the type and grade of lime based on the data of factory production control and current control of the shipped batch.
The current control data of the shipped batch, used for product acceptance, is entered in the current control log, the pages of which must be numbered and sealed.
6.4.1 Factory production control is carried out in accordance with the technological regulation.
6.4.2 Acceptance quality control of the shipped batch is carried out by submitted tests of the general sample. The total sample is made up of at least eight single samples. Samples are taken for lump lime - from vehicles supplying products to the warehouse, for powdered lime - from each mill or hydrator operating in a given silo. The mass of the total sample for lump lime must be at least 20 kg. powdered - not less than 10 kg. One-time sampling is carried out evenly and in equal quantities. The general sample of lump lime is crushed to the size of pieces no more than 10 mm.
6.4.3 Samples taken for the current control of the shipped batch are thoroughly mixed, quartered and divided into two equal parts. One of these parts is subjected to the tests to determine the performance specified in this standard, the other is placed in a hermetically sealed vessel and stored in a dry room during the warranty period in case a proof test is necessary.
6.5 Lime quality control checks are carried out by laboratories certified in accordance with the established procedure, using the specified sampling procedure.
6.5.1 A total sample is taken from each lot, obtained by pooling and thoroughly mixing single samples. The mass of the total sample for lump lime must be at least 30 kg. powdered - not less than 15 kg.
6.5.2 When lime is shipped in bulk, a sample is taken at the time of loading or unloading, when lime is shipped in containers - from the warehouse of finished products and when unloaded at the consumer.
6.5.3 When lime is supplied, a sample should be taken:
In bulk in wagons - in equal shares from each wagon;
By road - in equal shares of every 30 tons of lime.
In bags - in equal shares from 10 bags selected randomly from each lot;
By water transport - from conveyor belts or other types of loading and unloading means.
6.5.4 The selected general sample of lime is subjected to tests to determine the indicators provided for in this standard. The quality of lime is checked for all indicators by conducting acceptance and periodic tests in accordance with the requirements specified in table 3. Lime that has passed acceptance tests is subjected to periodic tests in accordance with GOST 22688.
Table 3
delivery | periodical |
|||
Active CaO + MdO | Quicklime | Each batch |
||
Hydragnaya | ||||
hydraulic | ||||
Active MdO | Quicklime | As required or at the request of the consumer |
||
Hydragnaya | ||||
hydraulic | ||||
Quicklime | ||||
Hydragnaya | ||||
hydraulic | ||||
Unquenched grains | Quicklime | Each batch |
||
Time and temperature of lime slaking | Quicklime | Each batch |
||
Humidity | Hydragnaya | Each batch |
||
Fraction size | Quicklime lump | At the request of the consumer |
||
Quicklime crushed and powdered | Each batch |
|||
Hydragnaya | Each batch |
|||
Hydraulic | At the request of the consumer |
|||
Uniformity of volume change | Quicklime | Periodically or at the request of the consumer |
||
Hydragnaya | ||||
Hydraulic | ||||
Compressive strength | Hydraulic | Each batch |
||
Quicklime | When putting products into production, but at least once a year |
|||
Hydragnaya | ||||
Hydraulic |
6.5.5 Each batch of lime or part of it delivered to one address must be accompanied by a quality document, which must indicate:
Manufacturer's name and/or trade mark and address:
Product name and designation of this standard;
Type and grade of lime;
Indicators of compliance of lime with the requirements of this standard;
♦batch number:
♦ date of shipment;
♦net weight of shipped goods, kg (t);
Warranty period of storage.
GOST 9179-2018
The list of indicators contained in the quality document can be supplemented in accordance with the requirements of the consumer.
6.5.6 The consumer has the right to conduct a control check of the quality of lime by sampling and testing according to GOST 22668.
6.5.7 At the quality control check, the lime shall comply with all the requirements of this standard for a given species and grade.
7 Test methods
7.1 Chemical analysis and determination of physical and mechanical properties of lime is carried out in accordance with GOST 22668. At the same time, for calcium lime, the content of active MgO is determined according to the input control data of raw materials.
7.2 The total specific effective activity of natural radionuclides is measured according to GOST 30108 in an accredited laboratory.
8 Packaging, marking, transport and storage
8.1 Lime is shipped in bulk, in bags of paper and combined materials according to GOST 2226 or woven polypropylene bags according to GOST 32522.
With the consent of the consumer, it is allowed to ship in flexible containers with a polyethylene liner (FIBC) intended for transportation and storage of hygroscopic materials.
6.2 To determine the average gross weight of the sacks, weigh 20 randomly selected sacks of lime simultaneously and divide the result by 20. The average net weight of the sack is determined by subtracting the average net weight of the sack from the gross weight. Permissible mass deviation in one packing unit is regulated by GOST 8.579.
8.3 The manufacturer is obliged to send each consumer a quality document issued in accordance with 6.5.5.
8.4 When shipping lime in bags and MKR, they must be marked with: the name of the enterprise and / or its trademark; full name of the lime; its guaranteed type and grade; designation of the standard according to which lime is supplied.
8.5 The manufacturer is obliged to deliver the lime in a cleaned vehicle.
8.6 During transportation and storage, lime must be protected from moisture and contamination with foreign impurities.
8.6.1 Lime is transported by transport of all types in accordance with the rules for the carriage of goods in force for this type of transport. With the consent of the consumer, the supply of lump lime in all-metal wagons, gondola cars and open cars is allowed, provided that its quality is maintained and the necessary measures are taken to prevent spraying and exposure to precipitation.
8.6.2 Lime should be stored and transported separately according to types and grades.
9 Manufacturer's warranties
9.1 The manufacturer guarantees compliance of lime with the requirements of this standard subject to the conditions of its transportation and storage.
9.2 Guaranteed shelf life of lime - 30 days from the date of its shipment to the consumer.
UDC 691.51:006.354 MKS91.100
Key words: building lime, technical requirements, acceptance rules, test methods. marking, packaging, transportation, storage
Editor L.S. Zimipova Technical editor I.E. Cherepkova Proofreader I.A. Koroleva Computer layout I.A. Napeikina
Handed over to the set04.10.2018. Signed for publication on 10/15/2018. Format 60"84'/ e. Headset Arial. Conv. oven l. 1.40. Uch.-ed. l. 1.26.
Prepared on the basis of the electronic version provided by the developer of the standard
Created in a single version. 117418 Moscow, Nakhimovsky prospect, 31, building 2. wwbv.gostinfo.ru
GOST 9179-77
INTERSTATE STANDARD
LIME FOR CONSTRUCTION
TECHNICAL CONDITIONS
IPK STANDARDS PUBLISHING HOUSE
Moscow
INTERSTATE STANDARD
Introduction date 01.01.79
This standard applies to building lime, which is a product of roasting carbonate rocks or a mixture of this product with mineral additives.
Building lime is used for the preparation of mortars and concretes, binders and the production of building products.
1. CLASSIFICATION
1.1. Building lime, depending on the hardening conditions, is divided into air, which ensures the hardening of mortars and concretes and maintains their strength in air-dry conditions, and hydraulic, which ensures the hardening of mortars and concretes and maintains their strength both in air and in water.
1.2. Air quicklime, depending on the content of calcium and magnesium oxides in it, is divided into calcium, magnesia and dolomite.
1.3. Air lime is divided into quicklime and hydrated (slaked), obtained by slaking calcium, magnesia and dolomitic lime.
1.4. Hydraulic lime is divided into weakly and strongly hydraulic.
1.5. According to the fractional composition, lime is divided into lump, including crushed, and powdered.
(Revised edition, Rev. No. 1).
1.6. Powdered lime obtained by grinding or slaking (hydrating) lump lime is divided into lime without additives and with additives.
1.7. Quicklime according to the slaking time is divided into fast-extinguishing - no more than 8 minutes, medium-extinguishing - no more than 25 minutes, slow-extinguishing - more than 25 minutes.
2. TECHNICAL REQUIREMENTS
2.1. Lime should be produced in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner.
(Revised edition, Rev. No. 1).
2.2. Materials used in the production of lime: carbonate rocks, mineral additives (granulated blast-furnace or electrothermophosphorus slag, active mineral additives, quartz sand) must meet the requirements of the relevant regulatory documents in force.
2.2.1. Mineral additives are introduced into powdered lime in amounts allowed by the requirements for the content of active CaO + MgO in it according to p.
2.3. Air quicklime without additives is divided into three grades: 1, 2 and 3; quicklime powdered with additives - into two grades: 1 and 2; hydrated (slaked) without additives and with additives in two grades: 1 and 2.
quicklime
hydrated
calcium
magnesia and dolomite
grade
Active CaO + MgO, not less than:
Without additives
With additives
Active МgO, no more
20 (40)
20 (40)
20 (40)
CO 2 , not more than:
Without additives
With additives
Unquenched grains, no more
Notes :
1. The content of MgO for dolomite lime is indicated in brackets.
2. CO 2 in lime with additives is determined by the gas volume method.
3. For calcium lime of the 3rd grade, used for technological purposes, it is allowed, in agreement with consumers, the content of unextinguished grains is not more than 20% .
2.6. Hydraulic lime chemical composition must meet the requirements specified in table. .
Table 2
|
Norm for lime,%, by weight |
||
|
weakly hydraulic |
highly hydraulic |
|
|
Active CaO + MgO; |
||
|
No more |
||
|
Not less than |
||
|
Active MgO, no more |
||
|
CO 2 , no more |
||
2.7. The tensile strength of the samples, MPa (kgf / cm 2), after 28 days of hardening should be at least:
but) when bending:
0.4 (4.0) - for weakly hydraulic lime;
1.0 (10) - "highly hydraulic";
b) when compressed:
1.7 (17) - for weakly hydraulic lime;
5.0 (50) - "highly hydraulic".
2.7.1. The type of hydraulic lime is determined by the compressive strength, if, according to individual indicators, it belongs to different types.
2.8. The content of hydrated water in quicklime should not exceed 2%.
6. MANUFACTURER WARRANTY
6.1. The manufacturer guarantees compliance of lime with the requirements of this standard subject to the conditions of its transportation and storage.
6.2. Guaranteed shelf life of lime - 30 days from the date of its shipment to the consumer.
(Revised edition, Rev. No. 1).
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of Industry of Building Materials of the USSR
2. APPROVED AND PUT INTO EFFECT by the Decree of the State Committee of the Council of Ministers of the USSR on Construction Affairs of July 26, 1977 No. 107
3. REPLACE GOST 9179-70 in terms of specifications
4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS
5. EDITION (October 2001) with Amendments No. 1 approved in March 1989 (IUS 7-89)
GOST 9179-77
GOST 9179-70
in terms of technical
UDC 691.51:006.354 Group Zh12
USSR STATE CONSTRUCTION COMMITTEE
STATE STANDARD OF THE UNION OF THE SSR
LIME FOR CONSTRUCTION
Specifications
lime for building purposes. Specifications
Introduction date 01.01.79
Non-compliance with the standard is punishable by law
This standard applies to building lime, which is a product of roasting carbonate rocks or a mixture of this product with mineral additives. Building lime is used for the preparation of mortars and concretes, binders and the production of building products.
1. CLASSIFICATION
1.1. Building lime, depending on the hardening conditions, is divided into air, which ensures the hardening of mortars and concretes and maintains their strength in air-dry conditions, and hydraulic, which ensures the hardening of mortars and concretes and maintains their strength both in air and in water.
1.2. Air quicklime, depending on the content of calcium and magnesium oxides in it, is divided into calcium, magnesia and dolomite.
1.3. Air lime is divided into quicklime and hydrated (slaked), obtained by slaking calcium, magnesia and dolomitic lime.
1.4. Hydraulic lime is divided into low-hydraulic and high-hydraulic.
1.5. According to the fractional composition, lime is divided into lump, including crushed, and powdered.
1.6. Powdered lime obtained by grinding or slaking (hydrating) lump lime is divided into lime without additives and with additives.
1.7. According to the slaking time, building quicklime is divided into fast-extinguishing - no more than 8 minutes, medium-extinguishing - no more than 25 minutes, slow-extinguishing - more than 25 minutes.
2. TECHNICAL REQUIREMENTS
2.1. Building lime should be produced in accordance with the requirements of this standard according to the technological regulations approved in the prescribed manner.
(Revised edition, Rev. No. 1).
2.2. Materials used in the production of building lime: carbonate rocks, mineral additives (granulated blast-furnace or electrothermophosphorus slag, active mineral additives, quartz sand) must meet the requirements of the relevant regulatory documents in force.
2.2.1. Mineral additives are introduced into powdered building lime in amounts allowed by the requirements for the content of active CaO + MgO in it according to clause 2.4.
2.3. Air quicklime without additives is divided into three grades: 1, 2 and 3; quicklime powdered with additives - into two grades: 1 and 2; hydrated (slaked) without additives and with additives in two grades: 1 and 2.
2.4. Air lime must meet the requirements specified in table. one.
Table 1
Norm for lime,%, by weight |
||||||||
quicklime |
hydrated |
|||||||
Name of indicator |
calcium |
magnesia and dolomite |
||||||
Active CaO + MgO, not less than: |
||||||||
without additives |
||||||||
with additives |
||||||||
Active МgO, no more |
||||||||
CO 2 , not more than: |
||||||||
without additives |
||||||||
with additives |
||||||||
Unquenched grains, no more |
||||||||
Notes:
1. The content of MgO for dolomite lime is indicated in brackets.
2. CO 2 in lime with additives is determined by the gas volume method.
3. For calcium lime of the 3rd grade, used for technological purposes, it is allowed, in agreement with consumers, the content of unextinguished grains is not more than 20% .
(Revised edition, Rev. No. 1).
2.4.1. Humidity of hydrated lime should not be more than 5%.
2.4.2. The grade of lime is determined by the value of the indicator corresponding to the lowest grade, if for individual indicators it corresponds to different grades.
2.5. (Deleted, Rev. No. 1).
2.6. Hydraulic lime chemical composition must meet the requirements specified in table. 2.
table 2
2.7. The tensile strength of the samples, MPa (kgf / cm 2), after 28 days of hardening should be at least:
but) when bending:
0.4 (4.0) - for weakly hydraulic lime;
1.0 (10) - for highly hydraulic lime;
b) when compressed:
1.7 (17) - for weakly hydraulic lime;
5.0 (50) - for highly hydraulic lime.
2.7.1. The type of hydraulic lime is determined by the compressive strength, if, according to individual indicators, it belongs to different types.
2.9. The degree of dispersion of powdered air and hydraulic lime must be such that when sifting a lime sample through a sieve with meshes No.
The maximum size of pieces of crushed lime should be no more than 20mm.
(Revised edition, Rev. No. 1).
2.9.1. By agreement with the consumer, it is allowed to supply lump hydraulic lime used for technological purposes.
2.10. Air and hydraulic lime must pass the test for uniformity of volume change.
3. ACCEPTANCE RULES
3.1. Lime must be accepted by the technical control department of the manufacturer.
3.2. Lime is accepted and shipped in batches. The batch size is set depending on the annual capacity of the enterprise in the following quantity:
200 tons - with an annual capacity of up to 100 thousand tons;
400 t- „ „ „ St. 100 to 250 thousand tons;
800 tons - „ „ „ „ 250 thousand tons.
Acceptance and shipment of batches and smaller mass is allowed.
(Revised edition, Rev. No. 1).
3.3. The mass of lime supplied is determined by weighing in vehicles on railway and truck scales. The mass of lime shipped in ships is determined by the ship's draft.
3.4. The manufacturer performs acceptance and certification of products and assigns the type and grade of lime based on the data of the factory technological control of production and the data of the current control of the shipped batch.
Logs with the data of the current control of the shipped lot, used for the acceptance of products, must be numbered and sealed with a stamp.
3.4.1. Factory technological control of production is carried out in accordance with the technological regulations.
(Revised edition, Rev. No. 1).
3.4.2. The current quality control of the shipped batch is carried out according to the test data of the general sample. The general sample is made up of at least two shifts of the enterprise and at least eight single samples. Samples are taken for lump lime - from vehicles supplying products to the warehouse, for powdered lime - from each mill or hydrator operating in a given silo. The total sample for lump lime is 20 kg, powdered - 10 kg. One-time sampling is carried out evenly and in equal quantities. The general sample of lump lime is crushed to the size of pieces no more than 10 mm.
3.4.3. Samples taken for the current control of the shipped batch are thoroughly mixed, quartered and divided into two equal parts. One of these parts is subjected to tests to determine the performance specified in the standard, the other is placed in a hermetically sealed vessel and stored in a dry room in case control tests are necessary.
3.5. Lime quality control is carried out by state and departmental quality inspectorates or by the consumer, using the specified sampling procedure.
3.5.1. A total sample is taken from each batch, obtained by combining and thoroughly mixing single samples. The total sample for lump lime is 30 kg, for powdered lime - 15 kg.
3.5.2. When shipping lime in bulk, the sample is taken at the time of loading or unloading, when shipping lime in containers - from the warehouse of finished products or when unloading from the consumer.
3.5.3. When lime is supplied in bulk in wagons, a sample is taken in equal shares from each wagon; when delivering lime by road - in equal shares from every 30 tons of lime; when delivering lime in bags - in equal shares of 10 bags selected at random from each batch; when delivered by water transport - from conveyor belts or other types of loading and unloading means.
3.5.4. The selected general sample of lime is subjected to tests to determine the indicators provided for in this standard.
3.5.5. (Deleted, Rev. No. 1).
3.5.6. During the quality control check, lime must comply with all the requirements of this standard for this type and grade.
4. TEST METHODS
Chemical analysis and determination of the physical and mechanical properties of lime are carried out in accordance with GOST 22688. At the same time, for calcium lime, the content of active MgO is determined according to the input control of raw materials.
(Revised edition, Rev. No. 1).
5. PACKAGING, LABELING, TRANSPORT AND STORAGE
5.1. Lump lime is shipped in bulk, powdered lime is shipped in bulk or in paper bags according to GOST 2226. It is allowed, with the consent of the consumer, to use four-layer paper bags.
5.2. To determine the average gross weight of sacks, 20 randomly selected sacks of lime are weighed simultaneously and the result is divided by 20. The average net weight of a sack is determined by subtracting the average net weight of a sack from the gross weight. The deviation of the average net weight of bags of lime from that indicated on the package should not exceed ± 1 kg.
5.3. The manufacturer, along with the shipping details, is obliged to send each consumer a passport, which should indicate:
the name of the manufacturer and (or) its trademark;
date of shipment of lime;
passport and party number;
batch weight;
full name of lime, its guaranteed type and grade, indicators of product compliance with the requirements of this standard;
extinguishing time and temperature;
type and amount of additive;
designation of the standard according to which lime is supplied.
In addition, a label must be enclosed in each transport unit, which indicates: the name of the manufacturer and (or) its trademark, the full name of the lime, its guaranteed type and grade, the designation of the standard according to which the lime is supplied.
(Changed edition, Rev. No. 1)
5.4. When shipping lime in paper bags, they must be marked with: the name of the enterprise and (or) its trademark, the full name of the lime, its guaranteed type and grade, the designation of the standard according to which the lime is supplied.
(Revised edition, Rev. No. 1).
5.4.1. It is allowed to replace all designations on bags with digital codes agreed with the consumer.
(Revised edition, Rev. No. 1).
5.4.2. When shipping lime of the same name and grade in wagon deliveries in non-transshipment railway traffic, it is allowed to mark only on bags stacked at the doors of the car on each side in the amount of at least four.
(Revised edition, Rev. No. 1).
5.5. The manufacturer is obliged to deliver lime in a serviceable and cleaned vehicle.
5.6. During transportation and storage, lime must be protected from moisture and contamination by foreign impurities.
5.6.1. Lime is transported by covered transport of all types in accordance with the rules for the carriage of goods in force for this type of transport. With the consent of the consumer, the supply of lump lime in all-metal gondola cars and open cars is allowed, provided that its quality is maintained and the necessary measures are taken to prevent spraying and exposure to precipitation.
(Revised edition, Rev. No. 1).
5.6.2. Lime should be stored and transported separately by type and grade.
6. MANUFACTURER WARRANTY
6.1. The manufacturer guarantees compliance of lime with the requirements of this standard subject to the conditions of its transportation and storage.
6.2. Guaranteed shelf life of lime - 30 days from the date of its shipment to the consumer.
(Revised edition, Rev. No. 1).
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of Industry of Building Materials of the USSR
PERFORMERS
V. A. Sokolovsky; L. I. Setyusha; N. V. Petukhova; N. E. Mikirtumova; A. B. Morozov
2. APPROVED AND PUT INTO EFFECT by the Decree of the State Committee of the Council of Ministers of the USSR on Construction Affairs of July 26, 1977 No. 107
3. REPLACE GOST 9179-70 in terms of specifications
4. REFERENCE REGULATIONS AND TECHNICAL DOCUMENTS
The designation of the NTD to which the link is given |
Item number |
GOST 2226-88 |
|
GOST 6613-86 |
|
GOST 22688-77 |
5. REPUBLICATION (July 1989) with Amendments No. 1 approved in March 1989 (IUS No. 7 1989)
Building materials produced and put on the market must necessarily comply with certain technical and quality parameters that are created and regulated at the state level.
To fulfill the goals, GOSTs are created, each of which describes the main characteristics of the selected building material and the standards for compliance. Building lime is regulated by GOST 9179 77. The act of a technical nature establishes features for this material.
As you know, it is a product of burning a rock composed mainly of natural elements or its mixture with special components of mineral origin.
Classification
White matter, obtained by burning limestone, is divided depending on the conditions of solidification. This is how it happens:
- with the elements of air. Provides hardening of solutions for construction and concrete, while maintaining their original characteristics. cement proportions lime mortar for plaster;
- with hydrate with components. They provide hardening of construction concrete solutions while retaining their original strength regardless of the medium. proportions of cement mortar. It can be air or water.
In turn, there is a classification of quicklime with air layers, depending on the percentage of calcium and magnesium oxide that it contains.
It enters the market:
- with calcium components;
- with magnesium components;
- with dolomite components.
Lime with air layers can be conditionally divided into the one that is not slaked and hydrated (slaked).
The latter is obtained by quenching the components discussed above. The hydraulic white matter that is obtained by burning limestone can be divided into:
- slightly hydraulic;
- highly hydraulic.
According to the structure of fractions, lime, which corresponds to GOST 9179 77, is divided into:
- lump;
- crushed;
- powdery.
Powdered material is obtained by crushing and grinding, and then quenching lumpy potassium oxide. Ultimately, a chemical mineral component may be added to the mass.
Quicklime white matter, obtained by burning limestone, is classified according to the degree of quenching.
Lime is divided into the one that is extinguished very quickly - no longer than 8 minutes, at an average pace - from half an hour, very slowly - more than half an hour.
Quality control
Potassium oxide is controlled by the department that is responsible for technical control. It is created in every company. going on receiving and shipping material in batches, while their size depends on the productivity of the enterprise for 12 months.
Quantity measured:
- two hundred tons - with a capacity of up to one hundred thousand;
- four hundred tons with a capacity of one hundred thousand to two hundred and fifty thousand;
- eight hundred tons - from two hundred and fifty thousand;
Reception and unloading of batches and smaller masses can be carried out. The mass of the material that is supplied must be determined by weighing the lime in transport on a special device to determine it. Such devices can be of railway or automobile type.
mass material that is shipped in the courts, easily determined by shrinkage. It is mandatory to carry out acceptance and certification of goods. The type and type of potassium oxide is indicated based on information provided by the company's process control department.
Magazines with information on flow control that are used when receiving goods must be numbered and sealed accordingly by the enterprise.
Technological control of all production stages, which is carried out at the plant, is carried out in accordance with special regulations.
The current quality control of the goods that are shipped is carried out according to the information from the testing of general samples, which is made up during the work of several shifts. Sample materials are taken.
Lump lime is a technique that regulates the supply of goods to warehouses. The total sample is taken no more than two tens of kilograms. For material in the form of a powder - from each place of production, with a total sample of tens of kilograms.
Single materials for tests are taken evenly and in the same quantities. General tests of lumpy material should be crushed to the point where centimetric particles are formed. Samples that are taken for flow control of the batch that is shipped are thoroughly mixed.
Then they are divided into equal parts. Some of them must be tested to determine normative indicators, others are placed in a vessel where air does not enter. It is immediately closed and stored in a room with a low concentration of moisture in case of control tests.
The control test for determining the quality of the material is carried out by special inspections. They can be both state and departmental. It can be carried out by the consumer himself, if he has the appropriate skills and strictly follows the sampling procedure.
An element is selected from each batch for testing, which is obtained by combining and thoroughly mixing all the collected materials.
For lump lime for tests, it is worth collecting three dozen kilograms, for powdered form - half as much.
When there is a simultaneous shipment of all lime, the material for research is selected at the stage of loading or unloading. In the latter case, it is taken from the bags, or already at the stage of unloading, when the buyer begins to use it.
If the material in question is delivered in bulk in special trains, a sample is taken in equal parts from each car. If potassium oxide is delivered by car, the test is collected in equal parts from all containers that exceed thirty tons.
If potassium oxide is supplied in bags, in equal parts from ten bags, which are selected at random. If potassium oxide is supplied by ships, from a conveyor belt or other mechanism for loading and unloading.
When the material for the general test is selected, it researched to determine the indicators foreseen GOST 9179 77. At the stage of test quality control, potassium oxide must comply with all the norms of the described standard.
Trial
Chemical studies and determination of physical and mechanical indicators of potassium oxide are carried out according to the prescribed standards in GOST 9179 77. Shipment of lumpy material occurs in bulk.
Lime in the form of a powder is shipped in bulk or sorted into special containers. If the client agrees, paper bags with four layers of paper are allowed.
To determine the average gross tare weight, twenty bags are weighed at the same time, which are selected randomly. The resulting number is divided by 20.
The average net tare weight is determined by subtracting the average net weight of a bag from the gross.
It is allowed to deviate the average values of net lime bags from those indicated on the container. This number cannot exceed a thousand grams.
The manufacturer at the same time with the details and information for shipment, must convey to each buyer quality control certificate, where it is necessary to indicate:
- in which company the product was manufactured;
- when was the shipment of potassium oxide;
- party and passport number;
- the mass of goods sold;
- when was the quenching carried out and at what temperature;
- how many minerals and other elements were added;
For each transported unit, a label is inserted where it is written: what is the name of the company, what is the name of the product, its guaranteed type and grade, a description of the standard according to which the delivery is carried out.
If the material is shipped in paper containers, it must indicate:
- what is the name of the company;
- what is the name of product, type and grade;
- description of the norms according to which the delivery is carried out.
The manufacturer must deliver the goods in transport, while preventing moisture from entering. Moisture ingress is undesirable during storage of materials.
Potassium oxide can be transported regardless of the type of covered transport in accordance with the standards for the transport of similar substances that apply to it.
GOST 9179 77
Today, the material in question, which can be obtained by firing, is actively used as the basis of cement. This became available due to the ability of the material to perfectly absorb moisture.
This material is in demand at the stage of production of cinder-concrete components, products with coloring pigments, white bricks. its size. Also, quicklime is used for decorative plaster. you can see its drawing.
Quicklime is actively used to neutralize wastewater, to treat buildings.
It can be found in most of the food products on the market. It is hidden in the form of substances that provide the creation of emulsions from immiscible liquids, binding components, which, in terms of their chemical and physical features resist dissolution in each other: for example, liquid and oil.
Quicklime has the following specifications. her formula. potassium oxide manufactured in accordance with GOST standards in accordance with technological regulations, which is approved in the manner prescribed by regulatory legal acts.
Materials used at the production stage potassium oxide: sedimentary rocks consisting of carbonic salts, inorganic natural and artificial materials with hydraulic and (or) pozzolanic properties. All these components must comply with GOST 9179 77.
Building lime and its specifications are also discussed in this document. Quicklime with air gaps without the addition of other foreign elements is divided into three types. about the application.
Quicklime in the form of a powder with different mineral components - for two grades; hydrated (slaked) without and with special additions - into two grades. her formula. Hydrated potassium oxide cannot be wet, this figure is 5 percent. The type of potassium oxide is determined by indicative components, which correspond to low grades.
The percentage of water of hydration in the quick-acting material cannot be more than two percent, and the maximum particles of the crushed material cannot be more than 2 cm.
For more information about quicklime, see the video:
Hydrated (also called hydrated) lime is obtained by contacting it with water. about its application.
It, in turn, completely changes the chemical and physical characteristics of the material, while excessive heat is released in the form of steam. If you pay attention to the type of quenching, you can get: lime water, milk or fluff.
Application
Lime GOST 9179 77 is used:
- in fertilizers. They have been used for many years to increase the fertility of the soil and for liming, in other words, to reduce the degree of acid content. Lime fertilizers of hard rocks are crushed before being applied to the soil;
- for tillage and plants. Water with potassium oxide is mixed with copper sulfate and after a few hours they begin to treat plants and soil from pests;
- when whitewashing wall and floor coverings. Here, completely different proportions are already used, kilogram of lime is diluted with two liters of water. If necessary, you can add a little more water until the desired consistency is obtained.
